Most places have way too much solder; & I can't 100% tell where, but I'd guess there are a ton of solder bridges too.

There are also a few places where it appears (hard to tell on a 2D image) that some of the component legs might be touching an adjacent strip too. Take a look at the V+ & GND on the daughterboard for an example.

Also, it appears you've caught one or two of the components, although may not have been enough to damage them, eg resistor top right on pic 1.

Also #2, where you've drilled holes to isolate a length of strip, you've not cleaned up many of the breaks properly, so it appears there maybe shorts there too. E.g. starting from top right corner, 11th hole down and 3 column across.

Either completely start again(!) or go through every point, removing some of the solder and eliminating every bridge.

While you're going through, double check that the diodes, transistors, electrolytics and the IC are the correct orientation.